Instead of FreeGeoIP use local GeoIP database

.gitignore

@@ -1 +1,4 @@
 /conf.php
+/vendor/
+/data/
+/composer.lock

bin/download_dependencies

@@ -0,0 +1,5 @@
+#!/bin/sh
+
+mkdir -p data/GeoIP
+cd data/GeoIP
+wget -O- http://geolite.maxmind.com/download/geoip/database/GeoLite2-City.tar.gz | tar --strip-components=1 -xvzf -

composer.json

@@ -0,0 +1,5 @@
+{
+    "require": {
+        "geoip2/geoip2": "~2.0"
+    }
+}

index.php

@@ -1,5 +1,6 @@
 <?php include "conf.php"; /* load a local configuration */ ?>
 <?php session_start(); ?>
+<?php require 'vendor/autoload.php'; /* composer includes */ ?>
 <?php include "modulekit/loader.php"; /* loads all php-includes */ ?>
 <?php call_hooks("init"); /* initialize submodules */ ?>
 <?php

modulekit.php

@@ -13,6 +13,7 @@
   'php' => array(
     'src/options.php',
     'src/language.php',
+    'src/ip-location.php',
   ),
   'css' => array(
     'style.css',

src/index.js

@@ -21,7 +21,6 @@ var lastPopupClose = 0
 // Optional modules
 require('./options')
 require('./language')
-require('./location')
 require('./overpassChooser')
 require('./fullscreen')
 require('./mapLayers')

src/ip-location.php

@@ -0,0 +1,24 @@
+<?php
+use GeoIp2\Database\Reader;
+
+register_hook('init', function () {
+  global $config;
+
+  if (isset($config['checkIpLocation']) && !$config['checkIpLocation']) {
+    return;
+  }
+
+  $reader = new Reader('data/GeoIP/GeoLite2-City.mmdb');
+
+  try {
+    $record = $reader->city($_SERVER['REMOTE_ADDR']);
+
+    $config['defaultView']['lat'] = $record->location->latitude;
+    $config['defaultView']['lon'] = $record->location->longitude;
+    $config['defaultView']['zoom'] = 10;
+  }
+  catch (Exception $e) {
+    // ignore error
+    trigger_error("Can't resolve IP address: " . $e->getMessage(), E_USER_WARNING);
+  }
+});